Issue #13037 has been reported by Ary Borenszweig.

----------------------------------------
Bug #13037: Segmentation fault on "\n".lines(chomp: true)
https://bugs.ruby-lang.org/issues/13037

* Author: Ary Borenszweig
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: ruby 2.4.0dev (2016-12-15 trunk 57084) [x86_64-darwin15]
* Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN
----------------------------------------
$ irb
irb(main):001:0> RUBY_DESCRIPTION
=> "ruby 2.4.0dev (2016-12-15 trunk 57084) [x86_64-darwin15]"
irb(main):002:0> "\n".lines(chomp: true)
(irb):2: [BUG] Segmentation fault at 0x00000000000000
ruby 2.4.0dev (2016-12-15 trunk 57084) [x86_64-darwin15]

-- Crash Report log information --------------------------------------------
   See Crash Report log file under the one of following:                    
     * ~/Library/Logs/CrashReporter                                         
     * /Library/Logs/CrashReporter                                          
     * ~/Library/Logs/DiagnosticReports                                     
     * /Library/Logs/DiagnosticReports                                      
   for more details.                                                        
Don't forget to include the above Crash Report log file in bug reports.     

-- Control frame information -----------------------------------------------
c:0020 p:---- s:0100 e:000099 CFUNC  :lines
c:0019 p:0009 s:0095 e:000094 EVAL   (irb):2 [FINISH]
c:0018 p:---- s:0092 e:000091 CFUNC  :eval
c:0017 p:0025 s:0084 e:000083 METHOD /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/workspace.rb:87
c:0016 p:0027 s:0076 e:000074 METHOD /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/context.rb:381
c:0015 p:0024 s:0069 e:000068 BLOCK  /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:493
c:0014 p:0041 s:0060 e:000059 METHOD /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:627
c:0013 p:0011 s:0054 e:000053 BLOCK  /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:490
c:0012 p:0128 s:0049 e:000048 BLOCK  /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/ruby-lex.rb:246 [FINISH]
c:0011 p:---- s:0045 e:000044 CFUNC  :loop
c:0010 p:0009 s:0041 e:000040 BLOCK  /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/ruby-lex.rb:232 [FINISH]
c:0009 p:---- s:0038 e:000037 CFUNC  :catch
c:0008 p:0018 s:0033 e:000032 METHOD /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/ruby-lex.rb:231
c:0007 p:0037 s:0029 E:000bd0 METHOD /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:489
c:0006 p:0008 s:0025 e:000024 BLOCK  /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:430 [FINISH]
c:0005 p:---- s:0022 e:000021 CFUNC  :catch
c:0004 p:0075 s:0017 E:002148 METHOD /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:429
c:0003 p:0118 s:0012 e:000011 METHOD /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:385
c:0002 p:0023 s:0006 e:000005 EVAL   /Users/asterite-manas/.rbenv/versions/2.4.0/bin/irb:11 [FINISH]
c:0001 p:0000 s:0003 E:001b00 (none) [FINISH]

-- Ruby level backtrace information ----------------------------------------
/Users/asterite-manas/.rbenv/versions/2.4.0/bin/irb:11:in `<main>'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:385:in `start'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:429:in `run'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:429:in `catch'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:430:in `block in run'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:489:in `eval_input'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/ruby-lex.rb:231:in `each_top_level_statement'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/ruby-lex.rb:231:in `catch'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/ruby-lex.rb:232:in `block in each_top_level_statement'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/ruby-lex.rb:232:in `loop'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/ruby-lex.rb:246:in `block (2 levels) in each_top_level_statement'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:490:in `block in eval_input'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:627:in `signal_status'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb:493:in `block (2 levels) in eval_input'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/context.rb:381:in `evaluate'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/workspace.rb:87:in `evaluate'
/Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/workspace.rb:87:in `eval'
(irb):2:in `irb_binding'
(irb):2:in `lines'

-- Machine register context ------------------------------------------------
 rax: 0x0000000000000000 rbx: 0x00007faf8a500d10 rcx: 0x00000000ffffffff
 rdx: 0x0000000000000000 rdi: 0x0000000000000000 rsi: 0x00007faf8d8724e8
 rbp: 0x00007fff58d4ceb0 rsp: 0x00007fff58d4ce80  r8: 0x000000010707a280
  r9: 0x00007faf8a406ed0 r10: 0x0000000000000005 r11: 0xffffffffffffff10
 r12: 0x00007faf8d8724e8 r13: 0x0000000000000000 r14: 0x00007faf8a500d10
 r15: 0x00007faf8d8724e8 rip: 0x0000000106f07043 rfl: 0x0000000000010246

-- C level backtrace information -------------------------------------------
0   ruby                                0x00000001070742eb rb_vm_bugreport + 379
1   ruby                                0x0000000106f14604 rb_bug_context + 452
2   ruby                                0x0000000106ff3c08 sigsegv + 72
3   libsystem_platform.dylib            0x00007fff929f352a _sigtramp + 26
4   ruby                                0x0000000106f07043 rb_enc_ascget + 51
5   ruby                                0x000000010701a30c rb_str_enumerate_lines + 1484
6   ruby                                0x0000000107067ee5 vm_call_cfunc + 277
7   ruby                                0x0000000107052a5d vm_exec_core + 11549
8   ruby                                0x0000000107062c18 vm_exec + 120
9   ruby                                0x0000000107070725 eval_string_with_cref + 1269
10  ruby                                0x000000010705e622 rb_f_eval + 306
11  ruby                                0x0000000107067ee5 vm_call_cfunc + 277
12  ruby                                0x0000000107052a5d vm_exec_core + 11549
13  ruby                                0x0000000107062c18 vm_exec + 120
14  ruby                                0x000000010706f9f9 invoke_block_from_c_splattable + 345
15  ruby                                0x0000000107070a5f loop_i + 31
16  ruby                                0x0000000106f1def3 rb_rescue2 + 275
17  ruby                                0x0000000107067ee5 vm_call_cfunc + 277
18  ruby                                0x000000010705232b vm_exec_core + 9707
19  ruby                                0x0000000107062c18 vm_exec + 120
20  ruby                                0x000000010706f9f9 invoke_block_from_c_splattable + 345
21  ruby                                0x00000001070709fa catch_i + 74
22  ruby                                0x000000010705f85c vm_catch_protect + 156
23  ruby                                0x000000010705ff42 rb_f_catch + 66
24  ruby                                0x0000000107067ee5 vm_call_cfunc + 277
25  ruby                                0x000000010705232b vm_exec_core + 9707
26  ruby                                0x0000000107062c18 vm_exec + 120
27  ruby                                0x000000010706f9f9 invoke_block_from_c_splattable + 345
28  ruby                                0x00000001070709fa catch_i + 74
29  ruby                                0x000000010705f85c vm_catch_protect + 156
30  ruby                                0x000000010705ff42 rb_f_catch + 66
31  ruby                                0x0000000107067ee5 vm_call_cfunc + 277
32  ruby                                0x000000010705232b vm_exec_core + 9707
33  ruby                                0x0000000107062c18 vm_exec + 120
34  ruby                                0x0000000106f1d218 ruby_exec_internal + 136
35  ruby                                0x0000000106f1d136 ruby_run_node + 54
36  ruby                                0x0000000106eb0b7f main + 79

-- Other runtime information -----------------------------------------------

* Loaded script: irb

* Loaded features:

    0 enumerator.so
    1 thread.rb
    2 rational.so
    3 complex.so
    4 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/x86_64-darwin15/enc/encdb.bundle
    5 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/x86_64-darwin15/enc/trans/transdb.bundle
    6 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/unicode_normalize.rb
    7 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/x86_64-darwin15/rbconfig.rb
    8 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/compatibility.rb
    9 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/defaults.rb
   10 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/deprecate.rb
   11 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/errors.rb
   12 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/version.rb
   13 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/requirement.rb
   14 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/platform.rb
   15 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/basic_specification.rb
   16 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/stub_specification.rb
   17 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/util/list.rb
   18 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/x86_64-darwin15/stringio.bundle
   19 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/specification.rb
   20 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/exceptions.rb
   21 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/dependency.rb
   22 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/core_ext/kernel_gem.rb
   23 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/monitor.rb
   24 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/core_ext/kernel_require.rb
   25 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems.rb
   26 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/rubygems/path_support.rb
   27 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/e2mmap.rb
   28 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/init.rb
   29 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/workspace.rb
   30 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/inspector.rb
   31 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/output-method.rb
   32 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/context.rb
   33 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/extend-command.rb
   34 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/notifier.rb
   35 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/slex.rb
   36 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/ruby-token.rb
   37 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/ruby-lex.rb
   38 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/src_encoding.rb
   39 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/magic-file.rb
   40 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/x86_64-darwin15/readline.bundle
   41 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/input-method.rb
   42 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb/locale.rb
   43 /Users/asterite-manas/.rbenv/versions/2.4.0-dev/lib/ruby/2.4.0/irb.rb

[NOTE]
You may have encountered a bug in the Ruby interpreter or extension libraries.
Bug reports are welcome.
For details: http://www.ruby-lang.org/bugreport.html

Abort trap: 6




-- 
https://bugs.ruby-lang.org/

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